Radio apparatus



March 2 1926. 1,574,958

c. w. DENNY ET AL v RADIO APPARATUS Filed August 15, 1923 HUMMER! A TTORNEYS.

4 JBW W MQ a readily assembled plug or Patented Mar. 2, 1926.

UNITED STATES PATENT OFFICE.

CHARLES w. DENNY, WILLIAM E. MCLAUGHLIN, AND GEORGE HELWIG, E MIDDLE- 'IOVIN, OHIO, ASSIGNORS TO T HE BARKELEW ELECTRIC MANUFACTURING COM- PANY, OF MIDDLETOWN', OHIO, A CORPORATION OF OHIO.

RADIO APPARATUS.

Application filed August 13, 1923. Serial No. 657,174.

7 '0 all whom it may concern Be it known that we, CHARLES IV. \VILLIAM E. MOLAUGHLIN, wio, citizens of the United States,

State of Ohio, have invented cert DENNY,

and GEORGE HEL- residing and am new and useful Improvements in Radio Apparatus, of which the tion, reterence companying drawing.

following is a specifica being hadtherein to the ac- Our invention relates to radio apparatus,

and, in particular, phones to an attachment for It is the object 0]": our invention to provide post f phones.

or radio It is an additional object to provide such a plug or post for tips for a plurality of phones, so

the reception of phone that the phone tips will be held positively in perfect electrical engagement.

eterring t0 the drawings: Figure plug on the line 1-1 of Figure 2.

1 is a section through the phone Figure 2 is a front elevation of the plug or post.

Figure to that of 3 is a section of similar character Figure 1 through the parts arran ed as a post mounted on a panel.

Figure 4: is a rear view of the spi-ingretaining cup, showing the arrangement of springs and connections.

This cup is the same whether us'ed 1n a phone plug or in a post.

N-shaped springs.

Figure 5 is a perspective of one of the pressions are adjacent the periphery of the cup at the base of the wall 3, which forms the wall of the pressions there 18 shown in Figure 5,

cup. In each of these delocated one of the springs with the free ends disposed upwardly toward the'bottom of the cup.

pressed areas is a plurality of apertures Intersecting a portion of these dewhich extend from the front of the spring retaining cup through to the bottom thereof,

so that the phone tips can pass completely through these apertures into the base of the phone cup if desired. In doing phone tips come 1n contact wltl'i so, the the tree ends 5 of the springs 6, and by moving these springs'laterally a broad and firm engage ment is eflected between the springs and the phone tips, thus making a perfect electrical contact, whether one or both phone tips are in position with respect to any given spring.

One 01 the springs is connected by a wire 7 to a circuit connecting screw 8, which projects through the aperture 9 in the cup. A similar aperture 10 is provided for the reception of a second connecting screw 11, which is also connected to one of the springs, either by a wire or by a direct engagement therewith. The wire in this case is desig nated 12.

The cup is adapted to receive a second cup-shaped body designated 13, which also has apertures 14 and 15 for the passage therethrough of the connecting screws 8" and 11.

In Figure 1, the cup 13 is utilized to reeeive the tollowingparts of a plug structure: A plate or disc 16 is mounted in the cup, while the screw 8 is insulated therefrom by an insulating collar 17. This screw 8 passes through the plate 16 and insulating collar 17 into electrical contact with a head 18 of and directly connected to the screw 11,

metal, which is connect-ed to a contact sleeve 19, which in turn engages with a spring finger 20 of a jack. The screws 11 and 8 are threaded into a plate 16' and the head 18 respectively, so that the several parts-are held in firm engagement with one another. The head 18 and the plate 16 are separated by an insulating disc 21. The plate 16 is further connected by a rivet or pin 22 with a contact head 23, which engages with the other side of the circuit in the form of the spring finger 2 1 of the jack. This contact head and rivet are insulated from the head and sleeve 18 and 19 by the insulating sleeve 25 and the plate 26. The rivet serves to hold the plate 16 and the head 18 with its sleeve 19, together with the insulations, in rigid position. Thus the whole structure may be placed in the jack or removed bodily.

In Figure 3 a somewhat similar structure is pr vided in that the cup 13 is used to receive the nuts 27 which are threaded on the screws 8 and 11, for the purposefof retaining the several parts together, so that in this structure the screws also serve the dual tune tion of an electrical conductor and a locking or retaining means to hold the several parts to one another. The screws pass outwardly through a panel 28, to which the post is attached, and are retained thereon by the locknuts 29 which are mounted on the respective screws 8 and 11. The screws therefore become suitable binding posts for other and further electrical connections in the usual manner.

It will be understood that we desire to comprehend within our invention such modifications as may be fairly embraced within it, and as may be found necessary in adapting it to various conditions in the art in the course of the application of the invention.

Having thus fully described our invention what we claim as new, and desire to secure by Letters Patent, is:

1, In a radio attachment cup-shaped member for receiving phone tips, means in said cup-shaped member for retaining said tips in position, a second cupshaped member mounted in the first, and means engaging both of said cup-shaped members for retaining them in engagement with one another, and means connecting said retaining means with. said phone tips incircuit.

2. In a radio attachment for phone tips, a cup-shaped member having a plurality of depressions in the base of the cup-shaped member and a plurality of phone tip receiving apertures communicating with the depressions, yielding means located in each of said depressions, so that phone tips inserted through said apertures will engage with said yielding means, a second cup-shaped member located within the first cup-shaped member and sealing said depressions to retain said yielding means in position, contact parts carried by said second cupshaped member and means connected in circuit with said yielding means and. phone tips, adapted to make contact with the contact parts to complete the remainder of the circuit, and also adaped to retain the several parts in engagement with one another.

3. In a radio attachment for phone tips, a cup-shaped member having a pluralityof depressions in the base of the cup-shaped tact parts to complete the for phone tips, a

member and a plurality of phone tip re ceiving apertures communicating with the depressions, yielding means located in each of said depressions, so that phone tips inserted through said apertures will engage with said yielding means, a second cupshaped member located within the first cupshaped member and sealing said depressions to retain said yielding means in position, contact parts carried by said second cupshaped member and means connected in circuit with said yielding means and phone tips, adapted to make contact with the con remainder of the circuit, and also adapted to retain the several parts in engagement with one another, said yielding means consisting of W-shaped springs, the free ends of which engage with the sides of the phone tips.

4. In, a radio attachment for phone tips, a cup-shaped member having a plurality of depressions in the base of the cup-shaped member and a plurality of phone tip receiving apertures communicating with the depressions, yielding means located in each of said depressions, so that phone tips inserted through said apertures will engage with said yielding means, a second cupshaped member located within the first cupshaped member and sealing said depressions to retain said yielding means in position, contact parts carried by said second cupshaped member means'connected in circuit with said yielding means and phone tips, adapted to make contact with the contact parts. to complete the remainder of the circuit, and also adapted to retain the several parts in engagement with one another,said yielding means consisting of W-shaped springs, the free ends of which engage with the sides of the phone tips, and connecting wires attached to respective springs for engaging with the means which retain the several parts to one another to complete the circuit.

In testimony whereof, we aihx our signatures.

CHARLES Vi. DENNY. WVILLIAM E. MCLAUGHLIN. GEORGE HELWVIG. 

